Transmission mechanism.



P. HADNAGY.

TRANSMISSION MECHANISM.

APPLICATION FILED AUG.9, 101.3.

Patented Dec. 1, 1914.

"15' IIURRIS PErERs CO PHOYUVLITHH, WASHINIIYUN. D I

UNITED STATES PATENT OFFICE.

PETER HAIDN'AG-Y, 015 DETROIT, MICHIGAN.

TRANSMISSION MECHANISM.

Application filed August 9, 1913.

To all whom it may concern:

Be it known that I, PETER HADNAGY, a subject of the Emperor ofAustria-Hungary, at present residing at Detroit, in the county of Wayneand State of Michigan, have invented certain new and useful Improvementsin Transmission Mechanism, of which the following is a specification,reference being had therein to the accompanying drawings.

This invention relates to an improvement in transmission mechanismwhereby simplicity of construction is combined with certainty ofoperation and compactness of design.

The invention consists in the matters hereinafter set forth, and moreparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a view, partially in plan and partially insection, of a form of transmission mechanism that embodies theinvention; Fig. 2 is a View, partially in section and partially in sideelevation, of the mechanism, and Fig. 3 is a view, partially in endelevation and partially in section, of the mechanism.

Referring to the drawings, a main shaft 1 is journaled in a suitablebearing 2 of a casing 3 and is recessed at its end to receive thereduced end portion 4: of a follower shaft 5 in axial alinementtherewith, a further suitable bearing 6 being provided for the lattershaft. A countershaft 7 is journaled in operative relation to thefollower and drive shaft and is geared to turn with the drive shaftthrough the medium of a main gear meshing with a main pinion 9. Areverse shaft 10 is likewise journaled in the casing parallel to theother shaft and in proper distance relation thereto.

A lever 11 is pivoted on the casing with a forked end portion 12embracing pins 13 on a yoke 14: that is reciprocable longitudinally on aguide member 15. The peripherally grooved hub 16 of a shiftable gearthat is splined to slide longitudinally on the follower shaft 5 withoutrotating thereon, is engaged by the yoke to move therewith. A suitableclutch member 17 on the end face of the hub 16 adjacent the gearS isadapted to interlock with a corresponding clutch member 18 on the latterto turnthe follower shaft in unison with the main shaft 1, one part 19of the shiftable gear being Specification of Letters Patent.

Patented Dec. 1, 1914.

Serial No. 783,875.

meshed by suitable movement of the gear with a reverse pinion 20 on thereverse shaft 10. As the latter shaft is always turning with the mainshaft through the medium of a pinion 21 constantly in mesh with the gear9 of the countershaft 7, such engagement of the sh iftable gear reversesthe direction of motion of the follower shaft. The member 19 of theshiftable gear may likewise be moved into mesh with a pinion 22 on thecountershaft, thereby driving the follower shaft at a lower speed thanthe main shaft. High speed is obtained by further movement of theshiftable gear so a smaller part 23 thereof engages with a comparativelylarge pinion 24 on the countershaft.

In operation proper manipulation of the shiftable gear either throws theclutch in for direct drive connection between the drive and followershaft, or else brings about direct drive at different speeds accordingto the selection of gears, while reversal is, obtained by meshing of theshiftable gear with the reverse pinion. Thus the various speeds areobtained by a mechanism which is compact, simple in construction, notliable to derangement and easily taken care of. As a matter of goodpractice it is advisable that the pivot or reduced end of the followershaft travel in a ball hearing, such as indicated, in a recessed orcounterbored end portion of the main shaft.

Obviously, changes in the details of construction may be made withoutdeparting from the spirit of my invention and I do not care to limitmyself to any particular form or arrangement of parts.

What I claim is A transmission mechanism comprising a casing, a mainshaft journaled therein, a follower shaft journaled in said casing, andhaving one end thereof rotatably stepped in the end of said main shaft,a reverse shaft, a counter shaft, a gear upon said main shaft, a gearupon said counter shaft permanently meshing with the gear of said mainshaft to turn said counter shaft in an opposite direction to said mainshaft, a gear on said reverse shaft permanently meshing with the gear ofsaid counter shaft to turn said reverse shaft in the same direction assaid main shaft, a reverse pinion upon said reverse shaft, a shiftablegear non-rotatable upon said follower shaft and adapted inone positionto be interlocked With said main said follower shaft can be increasedand deshaft to rotate in the same direction and in creased relative tosaid main shaft. 10 another position free of said main shaft and i Intestimony whereof I affix my signature meshing with said reverse pinionto rotate in presence of two Witnesses.

in an opposite direction to said main shaft, PETER HADNAGY. and changespeed pinion on said counter Witnesses:

shaft and adapted to be selectively engaged G. R. STIOKNEY,

by said shiftable gear whereby the speed of A. M. DORR.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C."

